adjective

1. of the universe; present or occurring everywhere or in all things
2. of, for, affecting, or including all or the whole of something specified; not limited or restricted
3. Obsolete being, or regarded as, a complete whole; entire; whole
4. broad in knowledge, interests, ability, etc.
5. that can be used for a great many or all kinds, forms, sizes, etc.; highly adaptable a universal voltage regulator
6. used, intended to be used, or understood by all
7. Logic not restricted or particular in application; predicating something of every member of a specified class

Etymology: ME universel < OFr < L universalis < universus: see universe

noun

1. universal joint
2. Logic
   1. a universal proposition
   2. predicable ()
   3. a general term or concept, or that which such a term or concept covers
3. Philos. a metaphysical entity characterized by repeatability and unchanging nature through a series of changing relations, as substance